Fosu-Mensah made 11 appearances for Manchester United last season, helping Jose Mourinho’s side to a Europa League and EFL Cup double.

He was part of United’s pre-season tour of the United States but has been offered more first-team opportunities at Crystal Palace this term.

The 19-year-old Dutchman, who can double up as a midfielder as well as a defender, will wear the No 24 shirt during his time at Selhurst Park.

He said on the move: “The manager spoke to me about coming down to join Crystal Palace and it was clear that he wanted me to be part of his squad which as a player gives you a great feeling straight away.

“I must now repay that back by putting in some good performances for the club.

“I am only 19 years old and still have a lot to learn and therefore getting the opportunity to play more games on a regular basis will help my development.”

And new Palace manager Frank de Boer was delighted to be reunited with his fellow former Ajax man.

Fosu-Mensah was part of Ajax’s development squad while De Boer was in charge of the Eredivisie giants.

“Timothy is a player who has great pace and incredible physical ability,” De Boer said.

“In today’s game you need players with strength and speed and is a player who can also play in midfield.

“I am seeing him in our system as a right centre back but he can also play full back in a 4-3-3.”